Axle-box for cars



(No Model.)

T. B. STEWART. AXLE BOX FOR CARS.

Patented 001:. 6, 1891.

IIIIIIIIIIIII UNITED STATES PATENT OFFICE.

TIMOTHY B. STEWART, OF HARTFORD, CONNECTICUT.

AXLE-BOX FOR CARS.

SPEGZFIGATION forming part of Letters Patent No. 460,604, dated October 6, 1891.

Application filed June 29, 1889. Serial No. 316,062. (No model.)

To all whom it may concern:

Be it known that I, TIMOTHY B. STEWART, of Hartford, in the county of Hartford and State of Connecticut,-have invented certain new and useful Improvements in Axle-Boxes for Cars, of which the following is a full, clear, and exact description, whereby any one skilled in the art can make and use the same.

The object of my invention is to produce an axle-box that is particularly adapted for use on cars; and it consists in the features relating to the oil-containing and dust-excluding devices, and in their combination, as

more particularly hereinafter described, and pointed out in the claims.

Referring to the drawings, Figure 1 is a top or plan view of my improved axle-box having parts cutaway in horizontal section to show details. Fig. 2 is a view in side elevation of the box with parts cut away to show construction. Fig. 3 is a detail view in vertical cross-section of the front end of the box on the plane denoted by the line y y of Fig. 2. Fig. 4 is a detail View in vertical section through the box on plane denoted by line a: a: of Fig. 2. Fig. 5 is a detail view in vertical section through the dust-box on plane denoted by line 00 0c of Fig. 2.

In the accompanying drawings, the letter a denotes an axle-box that is made, preferably, of iron cast to shape with a central chamber 1), through which the axle-arm cprojects, and a dust-box d and oil-chambers c. On the sides of the box, about midway, are formed the usual spring-sockets f, and bolt'holes are made in this portion to allow for the passage of the bolts by means of which the box is secured to the frame of the car. An opening cl is formed in the wall I) at the back end of the central chamber and between the central chamber and the dust-box for the passage of the axle-arm. In the dust-box is located the dust-guard g, that is preferably made in two or more parts that divide on a plane passing through the axle-arm. This dust-guard is composed of a plural number of sockets g, formed between the partitions g, that lie on opposite sides of the collars c, that are formed on the axle-arm, the dust-guard being so made and located as to embrace that portion of the axle-arm that is located within the dust-box. These partitions are preferably formed of h, located upon opposite sides of the chamber 1 i b, the yoke fitting into the groove 0, that is formed in the front end of the axle-arm. In the walls of the box, near the front end of the axle-arm, are formed vertical grooves i, in which is located a removable partition 11, that divides the chamber and prevents oil from slopping out toward the front end of the box, the sloping slide 1' being located in grooves formed in the walls of the box in the general line of the axle and immediately below the front end of it. This partition i is provided with a locking-flange i that fits into a groove a, formed across the front end of the box. This front end of' the box is provided with a cover j, the upper end fitting into a socket a, formed below the solid portion of the top of the box, while the lower end is provided with a flange j, that is secured to the top of the box by means of a bolt' which passes through said flange, the inner side of the cover being provided with a facing material that forms a packing on its lower inner edge, resting upon the partition 2'" in such manner as to lock it in place. The edges of this lining are provided with a packing j, that is made, preferably, of cork or leather or such elastic material thatis not injured by the contact of oil.

It is desirable to have the cars on which the axle-boxes are fitted run as long as possible without requiring attention and to have them as nearly as possible oil and dust tight. A considerable quantity of oil is required, and the nearer the oil can be located to the bearing or the packing in which the axle-arm runs the better are the results gained. In order to keep the oil comparatively near the axle-arm and avoid any great depth of the box to contain the requisite supply of oil, the oil-chamber is formed underneath the dust-box, and also under the lateral extensions, the upper parts of which form the spring-socketsf.

By means of the severalpartitions, located as shown, the oil is prevented from slopping out of the front end of the box and thus be- 1 ing wasted, and by means of the peculiar construction of the dust-guard dust is excluded from the wearing part of the journal and a great increase is made in durability and in the time that the car can be run Without requiring attention.

I claim as my invention- 1. In combination with an axle-box 0t, having a central chamber 6, dust-box d, and the oil-chambers e, the removable partitions t 71 all substantially as described.

2. In combination with an axle-arm c, having a collar 0' and groove 0', the journalbox having the removable partitions z" 71, forming oil-guards, and the cover j, with the lateral packings j, all substantially as described.

3. In combination Withajournal-box having the central chamber 6, the dust-box d, the oilchamber e, extending beneath the dust-box, and the spring-supports, the cover-socket a and the cover j,with a hooked end fitting the socket a", and a flange provided with a bolt hole, all substantially as described.

4. In combination with an axle-box a, having a central chamber b and separate dust-- box d, the sectional dust-guards of fibrous material located upon opposite sides of the axle arm, the axle-arm 0, having the collar 0, lo-

cated within the dust-box, and a groove 0 in g the axle-arm at its outer end, the yoke h, fitting the groove 0 in the axle-arm, and the cover j, overlying the yoke and holding it in place, all substantially as described.

5. In combination with an axle-box a, havin a central chamber 1), the dust-box d, the

sectional dust-guard 9, located in said dust- 1 

